4-Allylthiosemicarbazide

Also known as: 4-ALLYL-3-THIOSEMICARBAZIDE, 4-ALLYLTHIOSEMICARBAZIDE, AKOS BBS-00000541, ALLYL THIOSEMICARBAZIDE, N-ALLYLHYDRAZINECARBOTHIOAMIDE, 1-amino-3-prop-2-enylthiourea, Hydrazinecarbothioamide,N-2-propen-1-yl-, MFCD00007619, EINECS 223-186-7

4-Allylthiosemicarbazide (CAS 3766-55-0) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C4H9N3S and a molecular weight of 131.19900 g/mol. Key properties include a melting point of 93-96 °C(lit.), a boiling point of 209.8ºC at 760mmHg, a density of 1.131g/cm3 and a flash point of 80.7ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 3766-55-0
Jingsj CID: J-45890-2
Molecular Formula: C₄H₉N₃S
Molecular Weight: 131.19900 g/mol
Category: Aliphatic Hydrocarbons
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	93-96 °C(lit.)
Boiling Point	209.8ºC at 760mmHg
Density	1.131g/cm3
Flash Point	80.7ºC
Exact Mass	131.05200
PSA	82.17000
LogP	0.99230
Refractive Index	1.575

Customs & Trade Information

HS Code	2930909090
Summary	2930909090. other organo-sulphur compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 4-Allylthiosemicarbazide?

The CAS number of 4-Allylthiosemicarbazide is 3766-55-0.

What are the molecular formula and molecular weight of 4-Allylthiosemicarbazide?

4-Allylthiosemicarbazide has molecular formula C4H9N3S and molecular weight 131.19900 g/mol.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated: 8/21/2026

How to cite: Jingsj. "4-Allylthiosemicarbazide (CAS 3766-55-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-45890-2 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.